DISC BRAKE ROTOR AND METHOD FOR PRODUCING SAME

摘要

This invention relates to an improved structure for a brake rotor adapted for use in a vehicle disc brake assembly. According to one embodiment of the invention, the brake rotor (110) includes an inner mounting flange portion (112) and an outer annular disc portion (114) connected thereto by a hat portion (116), the inner mounting flange portion having a pilot hole (118) and a plurality of lug bolt receiving holes (120) formed therethrough, the outer annular disc portion defining an outboard brake surface (122), an inboard brake surface (124), an outer peripheral edge surface (126), and an inner peripheral edge surface (128), the outboard brake surface and the inboard brake surface located in a generally parallel relationship relative to one another, wherein at least the outer annular disc portion (114) is formed as an as-cast component without the use of a core piece and includes a plurality of grooves (132) formed therein, the plurality grooves being formed therein in a pattern to produce a non-directional brake rotor.